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authordgp <dgp@users.sourceforge.net>2010-03-29 21:58:58 (GMT)
committerdgp <dgp@users.sourceforge.net>2010-03-29 21:58:58 (GMT)
commit1df0c99376f51c3ea31e38fb947ba43057cafa9a (patch)
treea1f95f012c04870ea8977b0df1533d8f404080fb /generic/tclStringObj.c
parent22eff425b19fe30b4d3ed173f860d908bb7592f9 (diff)
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* generic/tclStringObj.c: Fix array overrun in test format-1.12
caught by valgrind testing.
Diffstat (limited to 'generic/tclStringObj.c')
-rw-r--r--generic/tclStringObj.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/generic/tclStringObj.c b/generic/tclStringObj.c
index 30851c1..e075d77 100644
--- a/generic/tclStringObj.c
+++ b/generic/tclStringObj.c
@@ -33,7 +33,7 @@
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclStringObj.c,v 1.134 2010/03/05 14:34:04 dkf Exp $ */
+ * RCS: @(#) $Id: tclStringObj.c,v 1.135 2010/03/29 21:58:58 dgp Exp $ */
#include "tclInt.h"
#include "tommath.h"
@@ -2131,7 +2131,7 @@ Tcl_AppendFormatToObj(
int digitOffset;
if (useBig && big.used) {
- if ((size_t) shift <
+ if (index < big.used && (size_t) shift <
CHAR_BIT*sizeof(Tcl_WideUInt) - DIGIT_BIT) {
bits |= ((Tcl_WideUInt) big.dp[index++]) << shift;
shift += DIGIT_BIT;